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CL-31 Ceilometer

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The enhanced single lens technology applied in the CL-31 ensures excellent performance starting at a height of virtually zero. The single lens technology provides unsurpassed reliability during precipitation, low clouds and ground based obscuration's, which are the most critical phenomena in aviation safety.

The CL-31 measurement cycle can be adjusted between 2 and 120 seconds, which gives flexibility for different applications. I addition, fast measurement helps to detect thin cloud patches below a solid cloud base. The CL-31 provides a full backscatter profile for data visualization and research purposes.

The CL-31 beam can be directed wither vertically or tilted. The tilting option together with the novel optics design provides enhanced performance during precipitation by improving shield protection. A tilt angle sensor automatically corrects the measured cloud distance reading to vertical cloud base height.

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Technical Details:

Performance:
>Measurement range: 0-25,000 ft
>Measurement Cycle: Programmable, 2 - 120 secs
>Reporting Resolution: 5m / 10ft, units selectable
>Measurement Accuracy: greater of +-% or +- 5m
>Laser: InGaAs diode, 910nm
>Eye Saftery: Class 1M IEC/EN 60825-1

Electrical:
>Power: 100/115/230 VAC, +- 10%, 50-60Hz, max. 310W inc. heating
>Interfaces: Data - RS232 / RS485 / Modem, Maintenance - RS232
>Back-up battery: Internal, 2Ah

Data Messages:
>Cloud hits and status information
>Cloud hits, status and backscatter profile
>Cloud hits and interanl monitoring data,
>Emulation of CT12K, CT25K, LD-25/40

Mechanical:
>Dimensions: Total - 1190x335x325mm, meaurement unit: 620x235x200mm
>Weight: Total - 31kg, Measurement unit - 12kg
>Tilt positions: Vertical or 12° tilted
>Automatic window blower / heater
>Radiation shield and pedestal
>Service access through a door
>Optical filters for protection against direct sunlight

Environmental:
>Temperature range: -40 to + 60°C
>Humididty: 0 - 100 %
>Wind: 55 m/s
>Housing classification: IP35 (NEMA 4)
>Vibration: Lyods Regster / IEC60068-2-6, 5-13.2 Hz +-1.0mm, 13.2-100Hz +- 0.79mm
>EMC: IEC/EN61326
>Electrical Saftey: IEC/EN60950

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